Patent Application
20140210161
The present application claims the benefit of priority to Chinese Patent Application No. 201210062147.4 titled “VALUABLE DOCUMENT IDENTIFICATION DEVICE”, filed with the Chinese State Intellectual Property Office on Mar. 9, 2012, the entire disclosure of which is incorporated herein by reference.
The present application relates to information collecting technology of a sheet-like to medium, and particularly to a solution which can effectively solve the problems that there is interference between various information collecting elements and the medium is tilted or deformed in the collecting and conveying process.
An identification device for identifying characteristics of financial notes to be processed is required to be mounted on an equipment for processing the financial notes. For example, financial equipments, for example the cash automatic teller machine (ATM), the banknote sorter and the cash counter, are all provided with the banknote identification device for identifying information of the banknote, for example the sorts, the face value, the facing orientation and the authenticity. Specific identifiable anti-fake labels are added on the banknote during the design and print process, such that various sensors are arranged in the above banknote identification device to detect and obtain relevant information of the anti-fake labels, for example an optical image sensor is provided to obtain a surface image or a projection image of the banknote by irradiating the banknote with lights of different wave lengths, and a magnetic sensor is provided to detect a magnetic printing ink and a metal safety wire which are added on the banknote during the print process. In order to precisely identify the banknote, generally multiple optical image sensors and magnetic sensors are provided in one identifying and detecting device.
A banknote identification device is disclosed in Chinese Patent No. CN 1818978A, in which multiple magnetic sensors and multiple optical image sensors are alternatively provided. Referring to
Various sensors are used in the banknote identification device, which may cause mutual interference between adjacent sensors, thus may cause interference for information collection and the system being unstable.
Further, during the note conveying process, the note needs to be conveyed at a high speed in the financial equipment. When the note passes through the above identification device, in which the note is clamped and conveyed by the linear conveying passage cooperating with conveying rollers, at a high speed, it is hard to avoid the note being tilted. Since the note is tilted in the identification device, the information acquired by various identification sensors has a worse regularity, which may cause a huge workload for processing the identification information.
One object of the present application is to provide a valuable document identification device which can effectively solve the problems that there is interference between various information collecting elements and the medium is tilted or deformed during the collecting and conveying process.
The valuable document identification device includes:
a hollow transparent rotating cylinder assembled with mounting side walls via a hollow bearing;
an annular clamping belt supported by at least two tension rollers and abutted against an outer surface of the transparent rotating cylinder, wherein a clamping and conveying passage of the valuable document is formed between an outer surface of the annular clamping belt and the outer surface of the transparent rotating cylinder, and has a length greater than a length of the valuable document in a conveying direction, and two ends, to formed by the two tension rollers, of the annular belt functions as an inlet and an outlet of the clamping and conveying passage for the valuable document respectively;
at least one information collecting device, an information collecting element of which is close to an inner surface of the transparent rotating cylinder and faces at least a portion of the outer surface of the annular clamping belt, and the information collecting element is unmovable relative to the mounting side walls; and
a power driving device, which drives the transparent rotating cylinder and the annular clamping belt to move synchronously in opposite directions.
Preferably, the annular clamping belt is a nontransparent belt.
Preferably, a driven wheel is provided at the inlet of the clamping and conveying passage at a position corresponding to the tension roller.
Preferably, an inlet end and an outlet end of the clamping and conveying passage are both provided with a guiding sheet for guiding the valuable document to smoothly enter and leave the clamping and conveying passage.
Preferably, a driven wheel is provided at the outlet of the clamping and conveying passage.
Preferably, the valuable document identification device further includes a depth collecting device mounted on a conveying path through which the valuable document enters or leaves the clamping and conveying passage.
Preferably, the valuable document identification device further includes a magnetic signal collecting device mounted on a conveying path through which the valuable document enters or leaves the clamping and conveying passage.
Preferably, a mounting position relationship between the information collecting element of the information collecting device and the transparent rotating cylinder is required to meet the following condition:
Wherein, “FOV” is a field angle of the information collecting element, “WN” is a width of the valuable document collected within the field angle, “Ha” is a distance between the valuable document and an apex of the field angle, and “WN” is equal to the minimum note-like medium width “WNmin” collected by the collecting device and calculated according to the requirement of image collection resolution.
Preferably, in order to accomplish the information collection of two sides of the valuable document by only conveying the valuable document once, the valuable document identification device includes two sets of the hollow transparent rotating cylinder, the annular clamping belt, the information collecting device and the power driving device, which are symmetrically arranged, wherein the valuable document enters an inlet of another clamping and conveying passage from an outlet of one clamping and conveying passage.
Preferably, the valuable document identification device further includes a casing for receiving all components, wherein the mounting side walls are a part of the casing, and the casing is provided with openings, at positions corresponding to the inlet and the outlet of the clamping and conveying passage respectively, for the valuable document to enter and leave.
Compared with the prior art, the valuable document identification device has the following advantages.
The accompanying drawings are provided to help further understanding of the present application and constitute a part of this specification. The drawings are provided to describe the present application in conjunction with embodiments of the present application, and do not intent to limit the present application.
In order to further describe the present application, one preferred embodiment of the present application is illustrated below in conjunction with drawings.
Referring to
Further, the annular clamping belt 41 is driven by the driving motor via the tension wheel 301 or 302 to move synchronously with the transparent rotating cylinder in a direction opposite to the rotation direction of the transparent rotating cylinder.
In order that the valuable document may smoothly enter into the clamping and conveying passage, a driven wheel 3011 is provided at an inlet end of the clamping and conveying passage at a position corresponding to the tension roller 301, and the inlet and the outlet of the clamping and conveying passage are both provided with a guiding sheet 8. Referring to
In order to obtain a depth information and a magnetism information of the valuable document simultaneously, a depth collecting device 91 and a magnetic signal collecting device 92 are provided on conveying paths through which the valuable document enters and leaves the clamping and conveying passage in this embodiment. Further, in order to effectively control the operation of the collecting device of the valuable document identification device, trigger sensors 93, 94 are provided respectively at the inlet and the outlet of the valuable document. When the trigger sensor 93 detects the entering of the valuable document, the valuable document identification device is started; and when the trigger sensor 94 detects the leaving of the valuable document, the valuable document identification device is stopped.
Further, referring to
Wherein, “FOV” is a field angle of the information collecting element, “WN” is a width of the valuable document collected within the field angle, “Ha” is a distance between the valuable document and an apex of the field angle, and “WN” is equal to the minimum note-like medium width “WNmin” collected by the collecting device and calculated according to the requirement of image collection resolution.
In order to further illustrate working principle of the valuable document identification device, an identification process of the valuable document by the device is illustrated in conjunction with
When the valuable document is conveyed to the opening 13, the trigger sensor 93 detects the valuable document, then the valuable document identification device is started. The transparent rotating cylinder 21 and the annular clamping belt 41 are respectively driven by respective driving motors to move, and linear velocities of the movements of the outer surface of the annular clamping belt 41 and that of the outer surface of the transparent rotating cylinder 21 are consistent. After passing through the magnetic signal device 92 mounted at the opening 12, the valuable document is guided by guiding sheet 8 to enter into a movement clamping passage formed between the outer surface of the annular clamping belt 41 and the outer surface of the transparent rotating cylinder 21 and is clamped to move forward along with the movements of the outer surface of the annular clamping belt 41 and the outer surface of the transparent rotating cylinder 21. When the valuable document is moving forward, the image of the valuable document is collected line by line by the information collecting device 51 which collects the image of the valuable document.
In this solution, two sets of the transparent rotating cylinder 21, the annular clamping belt 41 and information collecting devices 51 symmetrically arranged are employed, thus after the valuable document passes through one clamping and conveying passage, two additional guiding sheets 8 has to be provided to guide the valuable document to smoothly enter another clamping and conveying passage from one clamping and conveying passage. When the valuable document is moving forward in said another clamping and conveying passage, the image of the other side of the valuable document is collected, then the valuable document is conveyed out via the outlet 14. When being conveyed out via the outlet 14, the depth information of the valuable document is obtained by the depth sensor 91 arranged at the outlet 14, and when the trigger sensor 94 detects that the valuable document has left, the valuable document identification device is stopped.
Further, it is to be noted that, the control of the working state of each collecting device may be started and stopped one by one depending on the coming of the valuable document, specifically the conveying speed of the valuable document being clamped is calculated according to the triggering of the trigger sensor 93 to calculate the time period that the valuable document passes through each collecting device, so as to control the collecting time of each collecting device.
The above descried embodiments are only the preferred embodiments of the present application. It is to be noted that, the protection scope of the present application is not limited to the above preferred embodiments, and is defined by the claims. For the person skilled in the art, many modifications and improvements may be made to the present application without departing from the spirit and scope of the present application, and these modifications and improvements are also deemed to fall into the protection scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201210062147.4 | Mar 2012 | CN | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/CN2012/083555 | 10/26/2012 | WO | 00 | 1/17/2014 |
